80711171 has 8 divisors (see below), whose sum is σ = 83005680. Its totient is φ = 78422688.

The previous prime is 80711131. The next prime is 80711177. The reversal of 80711171 is 17111708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80711171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80711171.

It is not an unprimeable number, because it can be changed into a prime (80711177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47525 + ... + 49193.

It is an arithmetic number, because the mean of its divisors is an integer number (10375710).

Almost surely, 2^80711171 is an apocalyptic number.

80711171 is a deficient number, since it is larger than the sum of its proper divisors (2294509).

80711171 is a wasteful number, since it uses less digits than its factorization.

80711171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013.

The product of its (nonzero) digits is 392, while the sum is 26.

The square root of 80711171 is about 8983.9396146679. The cubic root of 80711171 is about 432.1599826844.

Adding to 80711171 its reverse (17111708), we get a palindrome (97822879).

The spelling of 80711171 in words is "eighty million, seven hundred eleven thousand, one hundred seventy-one".